A fast, private lookup for dog and cat owners managing multiple meds or supplements. No data leaves your browser.
Add two or more items to check for interactions. Pick from the list or type a custom name.
Start typing to see suggestions from our curated list of common pet meds.
Add at least two medications to see interaction results here.
These common situations show what the checker can flag. Use them as a starting point or to understand the kinds of risks to watch for.
Carprofen is a common NSAID for joint pain. Adding fish oil at high doses can increase bleeding risk, especially before surgery. The checker flags this as a moderate interaction and suggests asking your vet about dose timing.
Some flea collars contain permethrin, which is toxic to cats. If your cat is already on prednisone (which can stress the liver), adding a permethrin product raises the risk. The checker warns about cat-specific flea product safety.
Glucosamine, chondroitin, and MSM are often combined. While generally safe, stacking multiple joint supplements can make it hard to tell which one is actually helping. The checker notes this as a low-risk overlap and suggests a vet review.
Using a flea collar, a topical drop, and an oral flea tablet at the same time can overdose your pet on active ingredients. Pick one method and stick with it unless your vet says otherwise.
A dose that is safe for a 60-pound dog can be dangerous for a 10-pound cat. Never split or share prescriptions without explicit vet guidance for each animal.
Fish oil, vitamin E, and some herbal supplements can affect blood clotting. Tell your vet about everything your pet takes at least two weeks before any planned procedure.
Antihistamines like diphenhydramine (Benadryl) are common in pet first-aid kits. But they can interact with sedatives, anti-nausea drugs, and some heart medications. Include them in your check.
After running a check, print this sheet and bring it to your appointment. It helps you ask the right questions and gives your vet a clear list of everything your pet takes.
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